Just keep Rob away from that chain so he doesn't do something we'll all regret.

Relax, Eric; in the fifties, in Glasgow, it was bicycle chains that the local worthies took dancing with them. Or, had they no access to a bicycle, their own or stolen, a folding razor was a handy substitute. As I recall, those charming Italian flick-knives had a brief if fashionable life too. It didn't only all happen around Times Square, you know!